An underwater thruster fixing and casting device

Abstract

The present invention specifically relates to an underwater thruster fixing and casting device, belonging to the technical field of marine equipment. It includes a fixing member, a rotating member, a spherical ball, a fixing sleeve, a connecting member, and a thruster; a plurality of circular hole grooves are provided on the circumferential wall of the fixing member; spherical balls are arranged in each of the plurality of circular hole grooves; the spherical balls rotate and move within the circular hole grooves; the rotating member is disposed inside the fixing member; a plurality of arc-shaped hole grooves are provided on the outer circumferential wall of the rotating member; a plurality of convex platforms are provided on the lower end surface of the fixing member; threads are provided on the contact surface between the inner wall of the fixing sleeve and the outer wall of the connecting member; a plurality of grooves are provided at the upper end of the connecting member; the connecting member is fixedly connected to the convex platform of the fixing member through the grooves in a snap-fit manner; threads are provided on the outer wall of the connecting member; the connecting member and the fixing sleeve are fixedly connected through the threads; screw holes are provided on both the connecting member and the thruster for fixed connection. The present invention can increase the fixing reliability when the thruster is connected to an external carrier, and realize the rapid casting of the thruster by the external carrier.

Description

Technical Field

[0001] The present invention specifically relates to a fixing and throwing device for an underwater thruster, belonging to the technical field of marine equipment. Background Art

[0002] When existing manned atmospheric diving suits operate underwater, they will carry an underwater thruster and fix it to the manned atmospheric diving suit to achieve rapid underwater work and improve the underwater operation efficiency. The personnel inside the diving suit need to be able to fix the underwater thruster to the manned atmospheric diving suit through simple operations. In case of an emergency underwater, quickly throw away the relatively heavy thruster to achieve the purpose of rapid escape or rescue. Therefore, it is particularly important to urgently need a fixing and throwing device for an underwater thruster. Summary of the Invention

[0003] The purpose of the present invention is to provide a fixing and throwing device for an underwater thruster that can solve the fixing reliability between the underwater thruster and the carrier, and the carrier can quickly throw away the underwater thruster.

[0004] To achieve the above purpose, the present invention adopts the following technical solution:

[0005] A fixing and throwing device for an underwater thruster includes a fixing member, a rotating member, a spherical ball, a fixing sleeve, a connecting member, and a thruster; a plurality of circular hole grooves are provided on the circumferential wall of the fixing member; spherical balls are arranged in the plurality of circular hole grooves; the diameter of the spherical ball is greater than the diameter of the first circular hole surface of the circular hole groove; the spherical ball rotates and moves in the circular hole groove; the rotating member is disposed inside the fixing member; a plurality of arc hole grooves are provided on the outer circumferential wall of the rotating member; the diameter of the spherical ball is greater than the diameter of the second circular hole surface of the arc hole groove; the rotating member rotates and moves relative to the fixing member through the spherical ball; a plurality of convex platforms are provided on the lower end surface of the fixing member; the fixing sleeve sleeves the fixing member and the connecting member; a thread is provided on the contact surface between the inner wall of the fixing sleeve and the outer wall of the connecting member; a plurality of grooves are provided at the upper end of the connecting member; the connecting member is fixedly connected to the convex platform of the fixing member by clamping through the groove; a thread is provided on the outer wall of the connecting member; the connecting member is fixedly connected to the fixing sleeve through the thread; a screw hole is provided at the lower end of the connecting member; a screw hole is provided on the thruster; the connecting member is fixedly connected to the thruster through a fixing device.

[0006] Further as a preferred technical solution of the present invention, the number of the plurality of circular hole grooves, the plurality of arc hole grooves, and the spherical balls is 9.

[0007] Further as a preferred technical solution of the present invention, the number of the plurality of convex platforms and the plurality of grooves is 4.

[0008] Further as a preferred technical solution of the present invention, a plurality of screw holes are provided on the upper end surface of the fixing member; the fixing member is fixedly connected to an external carrier through a screw and a nut.

[0009] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0010] The present invention can increase the fixing reliability when the thruster is connected to the external carrier, and realize the quick jettison of the thruster by the external carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the present invention;

[0012] Figure 2 is a schematic partial structure of the present invention Figure 1 ;

[0013] Figure 3 is a schematic partial structure of the present invention Figure 2 ;

[0014] Figure 4 is a schematic partial structure of the present invention Figure 3 ;

[0015] Figure 5 is a schematic rotation diagram of the present invention Figure 1 ;

[0016] Figure 6 is a schematic rotation diagram of the present invention Figure 2 ;

[0017] Among them, the reference numerals are: 1 - fixing member; 2 - rotating member; 3 - spherical ball; 4 - fixing sleeve; 5 - connecting member; 6 - thruster; 7 - circular hole groove; 8 - first circular hole surface; 9 - arc hole groove; 10 - second circular hole surface. DETAILED DESCRIPTION OF THE INVENTION

[0018] The present invention will be further described in detail below with reference to the drawings.

[0019] As Figures 1 to 6As shown, an underwater thruster fixing and jettisoning device comprises a fixing member 1, a rotating member 2, a ball 3, a fixing sleeve 4, a connecting member 5, and a thruster 6; a plurality of circular hole grooves 7 are arranged on the circumferential wall of the fixing member 1; a plurality of circular hole grooves 7 are arranged in each of the plurality of circular hole grooves 7; a diameter of the ball 3 is larger than a diameter of a first circular hole surface 8 of the circular hole groove 7; the ball 3 rotates and moves in the circular hole groove 7; the rotating member 2 is built into the fixing member 1; a plurality of circular arc hole grooves 9 are arranged on the outer circumferential wall of the rotating member 2; a diameter of the ball 3 is larger than a diameter of a second circular hole surface 10 of the circular arc hole groove 9; the rotating member 2 The ball 3 is relatively rotated and moved with the fixing member 1; a plurality of bosses are arranged on the lower end face of the fixing member 1; the fixing member 1 and the connecting member 5 are inserted into the fixing sleeve 4; threads are arranged on the contact surfaces between the inner wall of the fixing sleeve 4 and the outer wall of the connecting member 5; a plurality of grooves are arranged on the upper end of the connecting member 5; the connecting member 5 is fixedly connected with the bosses of the fixing member 1 through the grooves; threads are arranged on the outer wall of the connecting member 5; the connecting member 5 is fixedly connected with the fixing sleeve 4 through threads; a screw hole is arranged on the lower end of the connecting member 5; a screw hole is arranged on the propeller 6; the connecting member 5 is fixedly connected with the propeller 6 through a fixing device.

[0020] The number of the plurality of circular hole grooves 7, the plurality of arc hole grooves 9, and the number of the round balls 3 are all 9. The number of the plurality of bosses and the plurality of grooves are all 4. The upper end surface of the fixing member 1 is provided with a plurality of screw holes; the fixing member 1 is fixedly connected to the external carrier through a screw rod and a nut.

[0021] In specific implementation, the fixing member 1 is fixed to the external carrier through a screw and a nut, and the rotating member 2 is placed in the fixing member 1 and can rotate at a certain angle in the fixing member 1. A plurality of circular hole grooves 7 are arranged on the circumferential wall of the fixing member 1; a sphere 3 is arranged in each of the plurality of circular hole grooves 7; the diameter of the sphere 3 is larger than the diameter of the first circular hole surface 8 of the circular hole groove 7; the sphere 3 rotates and moves in the circular hole groove 7; the rotating member 2 is built into the fixing member 1; a plurality of arc hole grooves 9 are arranged on the outer circumferential wall of the rotating member 2; the diameter of the sphere 3 is larger than the diameter of the second circular hole surface 10 of the arc hole groove 9;

[0022] During assembly, multiple balls 3 are placed in the circular hole groove 7 of the fixing member 1 respectively, and then the rotating member 2 is inserted. When the circular arc hole groove 9 of the rotating member 2 is aligned with the circular hole groove 7 of the fixing member 1, the ball 3 can enter the circular arc hole groove of the rotating member 2; when the circular arc hole groove 9 of the rotating member 2 is staggered with the circular hole groove 7 of the fixing member 1, part of the ball 3 is squeezed out from the circular arc hole groove 9 of the rotating member 2 and protrudes to the other direction through the circular hole groove 7 of the fixing member 1. Because the diameter of the first circular hole surface 8 of the circular hole groove 7 of the fixing member 1 is slightly smaller than the diameter of the ball 3, the ball 3 will not fall off from the circular hole groove 7 of the fixing member 1. The end face of the fixing member 1 is processed with 4 bosses for confirming the position with the connecting member 5 during assembly. The connecting member 5 is fixedly connected to the propeller 6 by bolt connection, and the fixing sleeve 4 is fixed to the connecting member 5 by threaded connection. Among them, the connecting member 5 has 4 grooves at the end face for limiting the position with the fixing member 1 during assembly.

[0023] During installation, align the arc-shaped hole groove 9 of the rotating part 2 with the round hole groove 7 of the fixing part 1, so that the spherical ball 3 completely enters the fixing part 1 and the rotating part 2. Then, put the fixing sleeve 4 on the fixing part 1 and the connecting part 5. When putting it on, pay attention to the relative positions of the boss of the fixing part 1 and the groove of the connecting part 5. After correct installation, the boss of the fixing part 1 should be placed in the groove of the connecting part 5, so that the assembly composed of the fixing sleeve 4, the connecting part 5, and the thruster 6 cannot rotate. As Figure 5 shown, rotate the rotating part 2 to extrude the spherical ball 3 from the round hole groove 7 of the fixing part 1, so that the spherical ball 3 is in close contact with the fixing sleeve 4 and has a certain extrusion force. The installation and connection of the device to the external carrier are realized. As Figure 6 shown, during unloading, rotate the rotating part 2. When the spherical ball 3 enters the arc-shaped hole groove 9 of the rotating part 2 and the round hole groove 7 of the fixing part 1, at this time, there is no fastening structure between the fixing sleeve 4 and the fixing part 1, and the assembly composed of the fixing sleeve 4, the connecting part 5, and the thruster 6 can be easily removed from the external carrier.

[0024] The present invention can increase the fixing reliability when the thruster is connected to the external carrier, and realize the rapid unloading of the thruster by the external carrier.

[0025] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An underwater thruster fixing and throwing device, characterized in that, it includes a fixing member (1), a rotating member (2), a spherical ball (3), a fixing sleeve (4), a connecting member (5) and a thruster (6); a plurality of circular hole grooves (7) are provided on the circumferential wall of the fixing member (1); spherical balls (3) are arranged in each of the plurality of circular hole grooves (7); the diameter of the spherical ball (3) is larger than the diameter of the first circular hole surface (8) of the circular hole groove (7); the spherical ball (3) rotates and moves within the circular hole groove (7); the rotating member (2) is placed inside the fixing member (1); a plurality of arc hole grooves (9) are provided on the outer circumferential wall of the rotating member (2); the diameter of the spherical ball (3) is larger than the diameter of the second circular hole surface (10) of the arc hole groove (9); the rotating member (2) rotates and moves relative to the fixing member (1) through the spherical ball (3); a plurality of bosses are provided on the lower end surface of the fixing member (1); the fixing sleeve (4) sleeved on the fixing member (1) and the connecting member (5); a thread is provided on the contact surface between the inner wall of the fixing sleeve (4) and the outer wall of the connecting member (5); a plurality of grooves are provided at the upper end of the connecting member (5); the connecting member (5) is fixedly connected to the boss of the fixing member (1) through the groove in a snap-fit manner; a thread is provided on the outer wall of the connecting member (5); the connecting member (5) is fixedly connected to the fixing sleeve (4) through the thread; a screw hole is provided at the lower end of the connecting member (5); a screw hole is provided on the thruster (6); the connecting member (5) is fixedly connected to the thruster (6) through a fixing device; The number of the plurality of circular hole grooves (7), the plurality of arc hole grooves (9) and the spherical balls (3) is 9 each; The number of the plurality of bosses and the plurality of grooves is 4 each.

2. The underwater thruster fixing and throwing device according to claim 1, characterized in that, a plurality of screw holes are provided on the upper end surface of the fixing member (1); the fixing member (1) is fixedly connected to an external carrier through a screw and a nut.

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